diff --git a/src/configuration-component.ts b/src/configuration-component.ts
old mode 100644
new mode 100755
index 59a5ff34..352813cb
--- a/src/configuration-component.ts
+++ b/src/configuration-component.ts
@@ -137,6 +137,7 @@ export class ConfigurationComponent {
         <option value="dark-blue">Dark Blue</option>
         <option value="photon-dark">Photon Dark</option>
         <option value="boxy-light">Boxy Light</option>
+        <option value="classic-dark">Classic Dark</option>
       </select>
 
       <h3 id="heading-enable">Enable Utterances</h3>
diff --git a/src/stylesheets/themes/classic-dark/button.scss b/src/stylesheets/themes/classic-dark/button.scss
new file mode 100755
index 00000000..1a57d198
--- /dev/null
+++ b/src/stylesheets/themes/classic-dark/button.scss
@@ -0,0 +1,14 @@
+.btn-primary {
+  background: linear-gradient(#407045, #305530);
+  border-color: #083;
+  color: #e2e2e2;
+}
+
+.btn-primary:hover {
+  background: linear-gradient(#508055, #407045);
+}
+
+.btn-primary:disabled {
+  background: linear-gradient(#203522, #152715);
+  border-color: #041;
+}
\ No newline at end of file
diff --git a/src/stylesheets/themes/classic-dark/index.scss b/src/stylesheets/themes/classic-dark/index.scss
new file mode 100755
index 00000000..dc150078
--- /dev/null
+++ b/src/stylesheets/themes/classic-dark/index.scss
@@ -0,0 +1,4 @@
+@import "./variables";
+@import "../../index";
+@import "./syntax";
+@import "./button.scss";
diff --git a/src/stylesheets/themes/classic-dark/syntax.scss b/src/stylesheets/themes/classic-dark/syntax.scss
new file mode 100755
index 00000000..6fd1d451
--- /dev/null
+++ b/src/stylesheets/themes/classic-dark/syntax.scss
@@ -0,0 +1 @@
+@import "github-syntax-dark/lib/github-dark";
diff --git a/src/stylesheets/themes/classic-dark/utterances.scss b/src/stylesheets/themes/classic-dark/utterances.scss
new file mode 100755
index 00000000..1bd16b05
--- /dev/null
+++ b/src/stylesheets/themes/classic-dark/utterances.scss
@@ -0,0 +1,4 @@
+@import "./variables";
+@import "../../utterances";
+@import "./syntax";
+@import "./button.scss";
diff --git a/src/stylesheets/themes/classic-dark/variables.scss b/src/stylesheets/themes/classic-dark/variables.scss
new file mode 100755
index 00000000..e870258f
--- /dev/null
+++ b/src/stylesheets/themes/classic-dark/variables.scss
@@ -0,0 +1,18 @@
+$gray-000: #0D1117;
+$gray-100: #222;
+$gray-200: #24292e;
+$gray-300: #343434;
+$gray-400: #586069;
+$gray-600: #7b7b7b;
+$gray-700: #959da5;
+$bg-white: #0D1117;
+$bg-gray: #090D13;
+$bg-gray-light: darken($bg-gray, 5%);
+$border-gray: $gray-300;
+$border-gray-dark: $border-gray;
+$text-gray: #949494;
+$text-gray-dark: #C9D1D9;
+$text-blue: rgb(65, 131, 196);
+$bg-blue-light: #182030;
+$black-fade-15: rgba(#fff, 0.15);
+$black-fade-30: rgba(#fff, 0.3);